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rev F cap mod against hall digital noise [focus on C3 the one shared with VR][two modded boards in PR] #102

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rusefillc opened this issue Feb 22, 2023 · 16 comments
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rev F cap mod against hall digital noise [focus on C3 the one shared with VR][two modded boards in PR] #102

rusefillc opened this issue Feb 22, 2023 · 16 comments
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rev-G VR-magic

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@rusefillc
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rusefillc commented Feb 22, 2023 •
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How do we hand modify add caps for hall digital noise drama?

#72

pins C3 and C7

actually it's mostly C3 which has issue. Is it same VR cap or different cap to improve mostly C3 digital hall input?

image
@ElDominio
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ElDominio commented Feb 22, 2023 •
edited by rusefillc
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Question, does changing to E5 help at all? @andreika-git ?

@rusefillc rusefillc changed the title rev E cap mod rev E cap mod against hall digital noise Feb 22, 2023
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Question: is there a difference between C3 and C7?

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Qwerty-OFF commented Feb 22, 2023 •
edited by rusefillc
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C7 is traditional OpAmp input through Input module
C3 connected to VR discrete and Schmitt trigger
Try to add 2x 1n capacitor:
image
And remove this:
image

edit:
image

@rusefillc
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rusefillc commented Feb 23, 2023 •
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@Timbelom please attempt two above mentioned mods on 4 chan rev E we have

  • add two 0805 cap marked 1n
  • remove resistor as described

https://user-images.githubusercontent.com/4116383/220756528-d098cc09-c10a-4265-8b81-b85b441e3b2b.png

@rusefillc rusefillc assigned Timbelom and unassigned Qwerty-OFF Feb 23, 2023
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@Qwerty-OFF посоветуй плиз куда кидать на землю конденсатор рядом с R22 тоже картинкой?

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image
image
Лучше использовать SMD

@rusefillc rusefillc mentioned this issue Feb 26, 2023
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@rusefillc rusefillc changed the title rev E cap mod against hall digital noise rev F cap mod against hall digital noise Feb 26, 2023
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@Qwerty-OFF my bad we have rev F not rev E, need same instructions for rev F with latest VR

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@Qwerty-OFF rev C does not have D57 is there a chance to fix rev C?

overall at the moment we have rev F and rev C to modify

@rusefillc
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rusefillc commented Feb 27, 2023 •
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1nf

image

@rusefillc
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1nf
image

@rusefillc
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rusefillc commented Feb 27, 2023 •
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Actually @Qwerty-OFF says to remove R753_2 to disconnect VR just for a test

image

@rusefillc rusefillc assigned ElDominio and unassigned Timbelom Feb 27, 2023
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@ElDominio this board is on the way to you. Please test and share results :)

@rusefillc rusefillc changed the title rev F cap mod against hall digital noise rev F cap mod against hall digital noise [focus on C3 the one shared with VR] Mar 8, 2023
@rusefillc rusefillc mentioned this issue Mar 8, 2023
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@rusefillc rusefillc changed the title rev F cap mod against hall digital noise [focus on C3 the one shared with VR] rev F cap mod against hall digital noise [focus on C3 the one shared with VR][board in PR] Mar 8, 2023
@rusefillc rusefillc changed the title rev F cap mod against hall digital noise [focus on C3 the one shared with VR][board in PR] rev F cap mod against hall digital noise [focus on C3 the one shared with VR][board back in NJ] Mar 15, 2023
@rusefillc rusefillc changed the title rev F cap mod against hall digital noise [focus on C3 the one shared with VR][board back in NJ] rev F cap mod against hall digital noise [focus on C3 the one shared with VR][two modded boards in NJ] Mar 16, 2023
@rusefillc rusefillc changed the title rev F cap mod against hall digital noise [focus on C3 the one shared with VR][two modded boards in NJ] rev F cap mod against hall digital noise [focus on C3 the one shared with VR][two modded boards in PR] Mar 21, 2023
@rusefillc rusefillc assigned Qwerty-OFF and unassigned ElDominio Apr 1, 2023
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@Qwerty-OFF we have positive test results! we need this mod on rev G

rusefi/rusefi#5211 (comment)

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image

@rusefillc rusefillc mentioned this issue Apr 2, 2023
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#117

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new ticket spelling our requirements andreika-git/hellen-one#285

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